Home / 172,017.60-258,038.58-45,656.82

Finding the Fourth Proportional to 172,017.60, 258,038.58 and 45,656.82

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Solution

The fourth proportional to 172,017.60, 258,038.58 and 45,656.82 is: 68,488.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,017.60 : 258,038.58 = 45,656.82 : x
  2. Step 2: Convert to fraction form
    172,017.60/258,038.58 = 45,656.82/x
  3. Step 3: Cross multiply
    172,017.60x = 258,038.58 × 45,656.82
  4. Step 4: Simplify right side
    172,017.60x = 11,781,221,000.12
  5. Step 5: Solve for x
    x = 11,781,221,000.12/172,017.60
  6. Step 6: Final answer
    x = 68,488.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.